Alexa Williams MD
About this NPIWhat this record shows.
NPI 1972033652 is registered to Alexa Williams MD, a Obstetrics & Gynecology practising at 1101 Highway K in O Fallon, Missouri. Obstetricians and Gynecologists (OB/GYNs) provide medical and surgical care for the female reproductive system, including pregnancy, childbirth, and gynecologic conditions. Alexa Williams MD has been enumerated in the National Provider Identifier (NPI) registry since 2017.
Your brand here.
Medicare enrollment
This provider holds a Medicare enrollment on file with the Provider Enrollment, Chain and Ownership System (PECOS). Each enrollment carries a public Medicare Enrollment ID (ENRLMT_ID) used by billers and intermediaries.
Practitioner
- I20210811002105Obstetrics/GynecologyMO
Source: CMS PECOS public enrollment file.
Insurance & acceptsHow to confirm coverage.
The National Plan and Provider Enumeration System (NPPES) registry does not include commercial insurance network data, so we cannot show which plans Alexa Williams MD accepts. To confirm in-network status with your specific health plan, contact Alexa Williams MD directly at (636) 379-6363.
Frequently asked
Yes. NPI 1972033652 is registered as Active in the CMS NPPES public registry and passes the Luhn check-digit validation that all 10-digit NPIs use.
Obstetricians and Gynecologists (OB/GYNs) provide medical and surgical care for the female reproductive system, including pregnancy, childbirth, and gynecologic conditions.
The CMS NPPES Public Registry at npiregistry.cms.hhs.gov is the authoritative source. FindMyNPI mirrors this dataset and refreshes monthly. For real-time verification, you can also call the provider's office at (636) 379-6363.
An individual healthcare provider has a single Type-1 NPI for life. Organisations can hold separate Type-2 NPIs per location, specialty, or sub-entity. Alexa Williams MD is a Type-1 individual NPI.